WO2021132623A1 - Ic chip-mounting device and ic chip-mounting method - Google Patents

Abstract

An IC chip-mounting device provided with: a plurality of nozzles that are each capable of being moved between a first position and a second position, the plurality of nozzles being configured to suction an IC chip when in the first position and to place, when in the second position, the IC chip upon an adhesive at the reference position of a corresponding antenna of an antenna strip; a nozzle mount unit to which the plurality of nozzles are mounted; and a control unit that, with respect to an antenna corresponding to a non-suctioning nozzle, which is a nozzle determined to have no IC chip suctioned thereto, controls the angular speed of the nozzle mount unit when rotated, such that an IC chip is placed on said antenna by a nozzle reaching the second position after the non-suctioning nozzle.

Description

IC chip mounting device, IC chip mounting method

The present invention relates to an IC chip mounting device and an IC chip mounting method.

With the widespread use of RFID tags, the production of sheet-shaped inlays having an antenna and an IC chip electrically connected to the antenna is expanding. In order to manufacture an inlay, a step of arranging the supplied IC chip at a predetermined reference position on the antenna, which is a reference for mounting the IC chip, is provided in the antenna formed on the base base material. (For example, Japanese Patent Application Laid-Open No. 2008-123406).
In Japanese Patent Application Laid-Open No. 2008-123406, one set of mounting devices out of four sets of mounting devices for mounting an IC chip on an antenna is mounted on an antenna that was not mounted by the other three sets of mounting devices. It is described that it is a device dedicated to backup for mounting.

According to Japanese Patent Application Laid-Open No. 2008-123406, it is considered that the yield can be improved in the inlay manufacturing process by providing a mounting device dedicated to backup, but it is necessary to have a mounting device dedicated to backup, which saves cost and space. It is disadvantageous in terms of.
Therefore, one aspect of the present invention is to improve the yield in the inlay manufacturing process without providing an additional device.

In one aspect of the present invention, a discharge portion for discharging adhesive toward a reference position of each antenna of an antenna continuum in which a plurality of antennas for inlays are continuously formed on a base material, and a plurality of nozzles. Therefore, each nozzle can move between the first position and the second position, and when it is in the first position, it attracts the IC chip, and when it is in the second position, it sucks the IC chip. The plurality of nozzles, the nozzle mounting portion to which the plurality of nozzles are mounted, and the transport surface, which are configured to be arranged on the adhesive at the reference position of the corresponding antenna of the antenna continuum. The nozzle mounting portion so that the plurality of nozzles move in an annular trajectory on orthogonal planes and the moving direction of each nozzle when each nozzle is in the second position coincides with the transport direction of the antenna continuum. A rotating unit that rotates the nozzle, a determination unit that determines whether or not an IC chip is attracted to each nozzle while each nozzle moves from the first position to the second position, and an IC chip that is determined by the determination unit. The nozzle mounting portion so that the nozzle that reaches the second position after the non-adsorption nozzle arranges the IC chip with respect to the antenna corresponding to the non-adsorption nozzle that is the nozzle determined not to be adsorbed. It is an IC chip mounting device provided with a control unit for controlling an angular speed when rotating a nozzle.

According to an aspect of the present invention, the yield can be improved in the inlay manufacturing process without providing an additional device.

It is a top view of the antenna of an embodiment and a partially enlarged view before and after mounting the IC chip. It is a figure which shows the antenna sheet and the roll body which wound the antenna sheet. It is a figure which shows the part corresponding to the IC chip arrangement process in the IC chip mounting apparatus of embodiment. It is a figure which shows the chip inclusion tape and its enlarged cross section. It is a side view of the rotary mounter in the IC chip mounting apparatus of embodiment. It is a top view and a side view of the nozzle unit mounted on a rotary mounter. It is a figure which briefly explains the relationship between a rotary mounter and an antenna sheet. It is a perspective view which shows the state which the chip containing tape is separated by the separation roller. It is a figure explaining the operation which IC chip is supplied to a nozzle unit from a chip inclusion tape. It is a front view which shows the moving mechanism in the width direction of a rotary mounter. It is a functional block diagram of the control part which controls a rotary mounter. It is a figure which shows the example of the image which was taken by the image pickup apparatus. It is a figure which illustrates the IC chip adsorbed on the nozzle before and after the rotation of the nozzle. It is a figure explaining the operation of a rotary mounter. It is a figure explaining the operation of a rotary mounter. It is a figure which shows the part corresponding to the curing process in the IC chip mounting apparatus of embodiment. It is a figure which shows a part of a pressing unit and an ultraviolet irradiator seen from the arrow J of FIG. It is a figure which shows the transport method of the antenna sheet of one Embodiment. It is a figure explaining the IC chip arrangement process of one Embodiment. It is a figure explaining the curing process of one Embodiment. It is a figure which shows the structural example of the ultraviolet curing unit in FIG. It is a figure explaining the curing process of one Embodiment.

The present invention is related to the patent applications of Japanese Patent Application No. 2019-235420 and Japanese Patent Application No. 2020-216460 filed with the Japan Patent Office on December 26, 2019 and December 25, 2020, respectively. All contents of are incorporated herein by reference.

Hereinafter, the IC chip mounting device and the IC chip mounting method according to the embodiment will be described with reference to the drawings.
The IC chip mounting device 1 according to the embodiment is a device for mounting an IC chip on a thin-film antenna when manufacturing a non-contact communication inlay such as an RFID inlay.
FIG. 1 shows an exemplary antenna AN having a predetermined antenna pattern, but is not intended to be limited to that antenna pattern. FIG. 1 also shows enlarged views of the E portion before and after the IC chip C is mounted on the antenna AN. In this example, the IC chip C is mounted at a predetermined reference position Pref determined in advance with reference to the antenna pattern. The IC chip C has an extremely small vertical and horizontal size of, for example, several hundred μm, and it is required to accurately mount the IC chip C having this extremely small size at the reference position Pref.

To mount the IC chip C on the antenna AN, apply an adhesive toward the reference position Pref of the antenna AN, place the IC chip C on the adhesive, and cure the adhesive. A curing step is required to strengthen the connection between the antenna AN and the IC chip C.

In the IC chip arranging step described later, as shown in FIG. 2, a roll in which a strip-shaped antenna sheet AS (an example of an antenna continuum) in which a plurality of antenna ANs are formed on a base material BM at a constant pitch is wound around. Body PR is installed. The antenna sheet AS is continuously pulled out from the roll body PR and put into the line of the IC chip arranging process.
The material of the base material BM is not particularly limited, but for example, a paper base material such as high-quality paper, coated paper, and art paper, PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), PS. A synthetic resin film made of (polystyrene), a sheet in which a plurality of types of the above synthetic resins are combined, and a composite sheet in which a synthetic resin film and paper are combined can also be used.
The antenna AN is formed, for example, by attaching a metal foil to the base material BM, or screen-printing or depositing a conductive material on the base material BM in a predetermined pattern.

In the following description, the XYZ coordinate system is defined as shown in FIG. In the following description, when referring to the views of the states arranged in each step, the view seen in the YZ plane is referred to as a front view, the view seen in the XY plane is referred to as a plan view, and the view seen in the XZ plane is referred to as a side view.
The X direction is the direction in which the antenna sheet AS drawn out from the roll body PR is conveyed in each of the steps described below, and is also appropriately referred to as the transfer direction D1. Further, the Y direction is the width direction of the antenna sheet AS, and is also appropriately referred to as the width direction D2. The Z direction is a direction orthogonal to the antenna sheet AS.

(1) IC chip placement process Hereinafter, the IC chip placement process will be described with reference to FIGS. 3 to 10. FIG. 3 is a diagram showing a portion corresponding to the IC chip arranging process in the IC chip mounting device 1 of the embodiment. FIG. 4 shows a plan view of the chip inclusion tape CT and an enlarged view of the AA cross section thereof.
In the IC chip arranging step, the IC chip mounting device 1 can accurately dispose an extremely small IC chip with respect to the reference position Pref (see FIG. 1) of each antenna AN on the antenna sheet AS.

As shown in FIG. 3, in the IC chip arranging process, the IC chip mounting device 1 includes a conveyor 81, a dispenser 2, a rotary mounter 3, an ultraviolet irradiator 41, image pickup devices CA1 to CA3, a tape feeder 71, and the like. The tape main body winding reel 72, the film winding reel 73, and the separation roller 74 are included.

The conveyor 81 conveys the antenna sheet AS drawn from the roll body PR (see FIG. 2) toward the downstream side of the process at a predetermined transfer speed. The upper surface of the conveyor 81 corresponds to the transport surface.
The dispenser 2 (an example of a discharge unit) discharges a fixed amount of anisotropic conductive paste (ACP (Anisotropic Conductive Paste); hereinafter, simply referred to as “conductive paste”) toward the reference position Pref of each antenna AN to be conveyed. To do. This conductive paste is an example of an ultraviolet curable adhesive. The dispenser 2 is configured so that the discharge position can be adjusted in the width direction in order to accurately position the discharge position with respect to the reference position Pref of each antenna AN.

The image pickup device CA1 is provided upstream from the dispenser 2 and captures an image of a portion near the reference position Pref of each antenna AN in order to determine the position where the conductive paste is applied. The image pickup apparatus CA2 is provided downstream of the dispenser 2 to inspect whether or not the conductive paste is applied to each antenna AN, and to inspect whether or not the conductive paste is accurately applied to the region including the reference position Pref. In addition, an image of a portion near the reference position Paste of each antenna AN is taken.

The rotary mounter 3 is a chip mounter for arranging an IC chip on a conductive paste applied to each antenna AN, and rotates counterclockwise in FIG. The rotary mounter 3 is attached to and suspended from the suspension plate 86. The suspension plate 86 is movably supported by the support base 85 in the Y direction. As a result, the rotary mounter 3 is suspended from above on the support base 85 and has a structure that can be moved in the Y direction.
As will be described later, the rotary mounter 3 sucks the IC chip from the chip inclusion tape, and discharges (mounts) the sucked IC chip toward the reference position Pref of each antenna AN on the antenna sheet AS. At this time, in order to accurately arrange the IC chip at the reference position Pref of the antenna AN, a process of correcting the position and orientation of the attracted IC chip is performed. The image pickup apparatus CA3 takes an image of the IC chip in a state of being attracted to a nozzle (described later) for correction processing for correcting the position and orientation of the IC chip when the IC chip is mounted on the antenna AN.

The tape feeder 71 is configured so that the chip containing tape including the IC chip is loaded in a wound state, and the chip containing tape is sequentially pulled out in the direction of the arrow in FIG. 3 at a speed synchronized with the rotary mounter 3. ..
Here, an example of the chip containing tape will be described with reference to FIG.
As shown in FIG. 4, the chip containing tape CT is attached to a tape body T in which recesses Td including the IC chip C are formed at regular intervals and to the tape body T so as to close the recesses Td. Includes a coating film CF. The recess Td is formed, for example, by embossing the tape body T. The IC chip C is included in each recess Td along the stretching direction of the chip inclusion tape CT. Mounting holes H are formed at regular intervals in the stretching direction of the chip inclusion tape CT. The mounting hole H is provided for accurate positioning with respect to the peripheral surface of the separation roller 74, and a protrusion 74p (described later) provided on the separation roller 74 when the chip inclusion tape CT is conveyed to the separation roller 74. Is inserted in).

As shown in FIG. 4, suction holes Ts are formed between the bottom surface of the recess Td and the back surface of the tape body T (the surface opposite to the surface to which the coating film CF is adhered). The suction holes Ts are provided for sucking the IC chip C by the separation roller 74 so that the IC chip C does not fall from the recess Td when the coating film CF is peeled off.

Referring to FIG. 3 again, in the separation roller 74, the coating film CF is peeled from the chip containing tape CT supplied from the tape feeder 71 via one or a plurality of auxiliary rollers, and separated into the tape body T and the coating film CF. .. The IC chip C exposed by peeling off the coating film CF is sequentially adsorbed on each nozzle provided on the rotary mounter 3.
After the chip containing tape CT is separated into the tape body T and the coating film CF by the separation roller 74, the tape body T is wound around the tape body winding reel 72 via one or more auxiliary rollers, and the coating film CF is It is wound on the film winding reel 73 via one or a plurality of auxiliary rollers.

Next, the rotary mounter 3 will be described with reference to FIGS. 5 to 7.
FIG. 5 is a side view of the rotary mounter 3 in the IC chip mounting device 1 of the embodiment. FIG. 6A is a plan view of the nozzle unit mounted on the rotary mounter 3. FIG. 6B is a side view of the nozzle unit 30. FIG. 7 is a diagram schematically explaining the relationship between the rotary mounter 3 and the antenna sheet AS.

As shown in FIG. 5, a plurality of nozzle units 30-1 to 30-12 are arranged radially from the rotary head 3H (an example of a nozzle mounting portion) on the rotary mounter 3 (12 in the illustrated example). .. In the following description, when the matters common to the nozzle units 30-1 to 30-12 are referred to, they are collectively referred to as the nozzle unit 30.
Although the details of the rotary head 3H are not shown, the rotary drive motor (rotary drive motor M31 described later) that rotates the nozzle units 30-1 to 30-12 counterclockwise in FIG. 5 and the IC chip are attracted to the nozzle unit 30. It is connected to a vacuum pump for making the nozzle unit 30 and a blower for discharging the IC chip from the nozzle unit 30.

Referring to FIG. 6, the nozzle unit 30 includes a nozzle 32, a sleeve 33, a solenoid valve 35, and a cylinder drive motor M30. The nozzle 32 is provided at the tip of the nozzle unit 30 and is connected to the cylinder drive motor M30 in the sleeve 33. The cylinder drive motor M30 is a motor (for example, a stepping motor) that rotates the nozzle 32 around its axis. The nozzle 32 is formed with a passage that can communicate with the intake pipe 36 and the exhaust pipe 37.
An intake pipe 36 and an exhaust pipe 37 are connected to the sleeve 33. The intake pipe 36 is connected to a vacuum pump (not shown), and the exhaust pipe 37 is connected to a blower (not shown).
The solenoid valve 35 (an example of a control valve) is, for example, a 3-port solenoid valve, and the exhaust pipe 37 is closed with the passage 34 of the nozzle 32 and the intake pipe 36 being opened according to the energized state of the solenoid valve 35. Alternatively, the intake pipe 36 is configured to be closed with the passage 34 of the nozzle 32 and the exhaust pipe 37 being opened. The solenoid valve 35 is configured to perform either a suction operation of suction through the intake pipe 36 by the nozzle 32 or an exhaust operation of discharging air from the nozzle 32 through the exhaust pipe 37.

With reference to FIG. 7, the rotary head 3H is rotated counterclockwise by a rotary drive motor (not shown), whereby the position of each nozzle unit 30 on the circumference of the rotary head 3H is sequentially switched. That is, the specific nozzle unit 30 goes around the rotary head 3H from the position PA to the position PL counterclockwise so as to move in an annular trajectory on a plane orthogonal to the transport surface in response to the rotation of the rotary head 3H. It will be located in each of the 12 positions PA to PL in order.

Here, the position PA (an example of the first position) is a position where the nozzle unit 30 newly sucks the IC chip C from the chip inclusion tape CT. The position PE is a position where the image of the IC chip C in a state of being attracted to the nozzle of the nozzle unit 30 is imaged by the image pickup apparatus CA3.
The position PK (an example of the second position) is a position where the adsorbed IC chip C is discharged onto the conductive paste applied to the antenna AN on the antenna sheet AS to be conveyed. At the position PK, the moving direction of the nozzle tip coincides with the transport direction D1 of the antenna sheet AS. At the position PK, air is discharged from the nozzle of the nozzle unit 30 in order to discharge the IC chip C.
At the position PL, since the IC chip C has already been discharged at the position PK, the nozzle unit 30 does not adsorb the IC chip C. At the position PL, air may be discharged from the nozzle in order to remove dust that may adhere to the nozzle. FIG. 7 shows an example in which a dust collection tray TR is arranged at the position PL to collect dust that can be discharged from the nozzle.

For example, the nozzle unit 30-1 at the position PA in FIG. 7 newly sucks the IC chip C there, rotates counterclockwise while sucking the IC chip C, and when the position PK is reached, the IC chip C is sucked. When it is released and returns to the position PA, the new IC chip C is repeatedly adsorbed. In such an IC chip mounting method, the IC chips can be continuously arranged on each antenna AN without stopping the transportation of the antenna sheet AS, and the productivity is high.

The angular velocity of the rotary head 3H and the transfer of the antenna sheet AS so that the nozzle unit 30 that reaches the position PK in order emits the IC chip C toward the reference position Pref of each antenna AN of the antenna sheet AS transported from the upstream. The speed is set or controlled. For reliable placement of the IC chip C, it is preferable to provide a section at the position PK where the speed of the tip of the nozzle unit 30 in the vicinity and the transport speed of the antenna sheet AS are constant.

In the present embodiment, an example in which 12 nozzle units 30 are arranged on the rotary head 3H is shown, but this is not the case. The number of nozzle units 30 arranged on the rotary head 3H can be arbitrarily set.

Next, the operation in which the IC chip C is attracted by the nozzle unit 30 will be described with reference to FIGS. 8 and 9.
FIG. 8 is a perspective view showing a state in which the chip inclusion tape CT is separated by the separation roller 74. FIG. 9 is a side view of the vicinity of the separation roller 74, and is a diagram illustrating an operation in which the IC chip C is supplied from the chip inclusion tape CT to the nozzle unit 30. In FIG. 9, only the chip containing tape CT is shown in cross section so that the state of the chip containing tape CT can be understood.

As shown in FIG. 8, a state in which the protrusion 74p of the separation roller 74 is inserted into the mounting hole H of the chip containing tape CT supplied from the tape feeder 71 to position the chip containing tape CT in the width direction. The chip inclusion tape CT is conveyed at. At this time, the coating film CF of the chip containing tape CT is peeled off by the branch member 75 and heads toward the film take-up reel 73. On the other hand, the tape body T of the chip containing tape CT faces the tape body take-up reel 72.

As shown in FIG. 9, the IC chip C exposed by peeling off the coating film CF is immediately adsorbed by the nozzle unit 30. At this time, the separation roller 74 is provided with the IC chip toward the center of rotation of the separation roller 74 so that the IC chip C does not fall in a short time from the exposure of the IC chip C to the suction by the nozzle unit 30. A suction path (not shown) for sucking C is provided. The IC chip C is sucked through the suction path and the suction holes Ts (see FIG. 4) provided in the tape body T.

Next, the moving mechanism 8 for moving the rotary head 3H in the width direction D2 will be described with reference to FIG. FIG. 10 is a front view of the moving mechanism 8.
The moving mechanism 8 is provided so that the position of the IC chip C adsorbed by the nozzle unit 30 in the width direction D2 can be corrected. As shown in FIG. 10, the moving mechanism 8 includes a bearing 76, a shaft 77, a suspension plate 86, a guide plate 87, a slider 88, and a width direction drive motor M32.
The bearing 76, the shaft 77, and the width direction drive motor M32 are provided on the support base 85. The shaft 77 is a rod-shaped member having a threaded portion, and is rotationally driven by the width direction drive motor M32. The shaft 77 is rotatably supported by bearings 76 (two locations) fixed to the upper surface of the support base 85.
The rotary head 3H is attached to the suspension plate 86. The upper end of the suspension plate 86 is formed with a threaded hole (not shown), and this hole is fitted with the threaded portion of the shaft 77. Therefore, the suspension plate 86 and the rotary head 3H attached to the suspension plate 86 can move in the width direction D2 according to the rotation of the shaft 77. The upper portion of the support base 85 and the guide plate 87 are provided with hollow portions in the movable range of the suspension plate 86 in the width direction D2. The slider 88 is attached to the suspension plate 86, and slides on the upper surface of the guide plate 87 as the suspension plate 86 moves in the width direction D2.
With the above-described configuration, the moving mechanism 8 makes it possible to displace the rotary head 3H in the width direction D2 in response to the rotational drive of the width direction drive motor M32.

In the present embodiment, an example is shown in which the nozzle unit 30 attached to the rotary head 3H is moved in the width direction D2 by moving the rotary head 3H in the width direction D2 by the moving mechanism 8, but this is not the case. .. For example, the rotary head may be configured so that each nozzle unit 30 can be individually displaced in the width direction D2 inside the rotary head without moving the rotary head in the width direction D2.

Referencing FIG. 3 again, an ultraviolet irradiator 41 is provided in the vicinity of the position where the IC chip is discharged from the nozzle unit 30 of the rotary mounter 3 to the antenna AN (position PK in FIG. 7).
The ultraviolet irradiator 41 is configured to irradiate the conductive paste on the conveyed antenna AN with ultraviolet rays. The purpose of irradiating ultraviolet rays with the ultraviolet irradiator 41 is different from that of ultraviolet irradiation (described later) performed in the curing step which is a subsequent step of the IC chip arranging step, and the purpose is to adjust the viscosity of the conductive paste on the antenna AN. And. From this point of view, it is preferable that the integrated light amount of ultraviolet rays given to the conductive paste by the ultraviolet irradiator 41 is smaller than the integrated light amount of ultraviolet rays given to the conductive paste in the subsequent curing step. Since the integrated light intensity of ultraviolet rays is represented by the product of the light intensity and the irradiation time, at least one of the light intensity and the irradiation time may be adjusted in order to adjust the integrated light intensity.

In the IC chip mounting device 1 of the present embodiment, the antenna AN may be coated with a thermosetting adhesive such as an epoxy resin by the dispenser 2, and a thermosetting device may be provided instead of the ultraviolet irradiator 41.

In FIG. 3, the ultraviolet irradiator 41 is arranged so as to irradiate ultraviolet rays after the IC chip is arranged, but this is not the case. The ultraviolet irradiator 41 may be arranged to irradiate ultraviolet rays before the IC chip is arranged, or may be arranged to irradiate ultraviolet rays at the same time as the IC chip is arranged.
When the IC chip is irradiated with ultraviolet rays after being placed, the viscosity of the conductive paste is lowered, so that the IC chip is less likely to shift or tilt after being placed on the conductive paste. When the IC chip is irradiated with ultraviolet rays before or at the same time as the IC chip is arranged, the IC chip is arranged on the conductive paste in a state where the viscosity is lowered, so that the IC chip is arranged on the conductive paste. Since the IC chip is difficult to move after being arranged in the paste, it is difficult for the IC chip to shift or tilt.
In either case, by irradiating the ultraviolet rays at a position in the vicinity where the IC chip is arranged, it is possible to avoid a situation in which the IC chip is not stable on the conductive paste due to the fluidity of the conductive paste. That is, there is an advantage that the mounting accuracy of the IC chip can be improved by irradiating with the ultraviolet irradiator 41.

Next, with reference to FIGS. 11 to 13, the control performed by the control unit 100 that controls the rotary mounter 3 will be described. FIG. 11 is a functional block diagram of the control unit 100. FIG. 12 shows an example of an image captured by the image pickup apparatus CA1. FIG. 13 is a diagram illustrating the IC chip C adsorbed on the nozzle 32 before and after the rotation of the nozzle 32. The state before rotation of the nozzle in FIG. 13 shows an example of an image captured by the image pickup apparatus CA3. The rotated state of the nozzle of FIG. 13 shows the XYZ axis when the nozzle is in the position PK (see FIG. 7).

The control unit 100 is mounted on a circuit board (not shown), and includes image pickup devices CA1 to CA3, a dispenser 2, a cylinder drive motor M30, a rotary drive motor M31, a width direction drive motor M32, a solenoid valve 35, and an ultraviolet irradiator 41. Is electrically connected to. The rotary drive motor M31 (an example of a rotary unit) is a drive means for rotating the nozzle units 30-1 to 30-12 in the rotary head 3H.
The control unit 100 includes a microcomputer, a memory (RAM (Random Access Memory), a ROM (Read Only Memory)), a storage, and a drive circuit group. The microprocessor reads and executes the program recorded in the memory, and executes the discharge position adjusting means 101, the IC chip correcting means 102, the valve controlling means 103, the curing executing means 104, the suction determining means 105, and the rotary head rotation control. Each function of the means 106 is realized.

The discharge position adjusting means 101 has a function of determining the discharge position of the conductive paste based on the image captured by the image pickup apparatus CA1 and adjusting the discharge timing of the conductive paste and the position of the dispenser 2 in the width direction D2. The method for determining the discharge position of the conductive paste is as follows with reference to FIG.
The image captured by the image pickup apparatus CA1 is an image of a portion in the vicinity of the reference position Pref of the antenna AN, as illustrated in FIG.
The discharge position adjusting means 101 specifies the reference position Pref from the characteristic portion of the shape included in the image. Specifically, the discharge position adjusting means 101 analyzes the shape of the antenna AN in the image of FIG. 12, and sets reference lines L1 and L2 parallel to each other in the X direction and reference lines L3 and L4 parallel to each other in the Y direction. It is specified, and the intersection of the center line of the reference lines L1 and L2 and the center line of the reference lines L3 and L4 is specified as the reference position Pref.

The point Pj1 in the image of FIG. 12 is the target position of the reference position Pref on the image, and is predetermined based on the result of calibration between the image by the image pickup apparatus CA1 and the dropping position of the conductive paste of the dispenser 2. Position. That is, by adjusting the discharge timing of the dispenser 2 and the position in the width direction D2 so that the reference position Pref specified on the image coincides with the target position Pj1, the conductive paste is applied to the reference position of the actual antenna AN. can do.
In the example of FIG. 12, in order for the reference position Pref specified on the image to coincide with the target position Pj1, it is necessary to adjust the positions by x1 in the X direction and y1 in the Y direction. Specifically, the discharge timing from the dispenser 2 is determined based on x1 in consideration of the transport speed of the antenna AN, and the displacement of the dispenser 2 in the width direction D2 is performed based on y1. That is, the discharge position adjusting means 101 transmits a control signal for instructing the discharge timing and the displacement in the width direction D2 to the dispenser 2, and the dispenser 2 performs the discharge operation based on the control signal.

The image captured by the image pickup apparatus CA2 is the same as that of FIG. 12 except that the conductive paste is applied.

The IC chip correction means 102 (an example of a correction amount determining unit) has a function of correcting the IC chip adsorbed on the nozzle 32. The correction method of the IC chip is as follows with reference to FIGS. 12 and 13.
As shown in the state before rotation in FIG. 13, the image captured by the image pickup apparatus CA3 (an example of the image acquisition unit) includes the nozzle end 32e of the nozzle 32 and the IC chip C adsorbed on the nozzle end 32e. included. The point Pc1 is the center position of the IC chip C before the rotation of the nozzle. The point Pj2 in the image of FIG. 13 is the target position of the center position of the IC chip C on the image, and is set to coincide with the target position Pj1 of FIG. That is, by matching the center position of the IC chip C with the target position Pj1, the IC chip C can be arranged at the reference position of the actual antenna AN to be transported.

The rotation center Prc around the axis of the nozzle 32 does not become the theoretical axis center of each nozzle due to mounting variations of the nozzle units 30-1 to 30 to 12. The rotation center Prc differs depending on each nozzle unit, and is specified, for example, based on measured data obtained in advance.
First, when the center Pc1 of the IC chip C shown in the image is rotated around the rotation center Prc around the axis of the nozzle 32, the reference line of the IC chip C (for example, the reference side of the IC chip C in FIG. 13). The amount of rotation until Sc) becomes parallel in the Y direction is determined.
In the example of the state after rotation of FIG. 13, the IC chip C in the captured image is rotated around the rotation center Prc so that the reference side Sc of the IC chip C is parallel to the Y direction. The rotation angle at this time is specified as a correction amount in the rotation direction of the IC chip C (an example of the first correction amount). Here, when the center position of the IC chip C after movement is set to the point Pc2, the correction amount in the X direction (an example of the second correction amount) is x2 and the correction amount in the Y direction is corrected in order to match the point Pc2 with the target position Pj2. The amount (an example of the third correction amount) is specified as y2.

The IC chip correction means 102 sends a control signal corresponding to the correction amount in the rotational direction around the axis of the nozzle 32 to the cylinder drive motor M30, whereby the IC chip is removed from the position PE (position imaged by the image pickup apparatus CA3). The nozzle 32 rotates about the axis until the discharge position PK.
The IC chip correction means 102 sends a control signal corresponding to the correction amount x2 in the X direction to the drive circuit for driving the rotary drive motor M31, whereby the angular velocity of the rotary head 3H is adjusted. The IC chip correction means 102 sends a control signal corresponding to the correction amount y2 in the Y direction to the drive circuit for driving the width direction drive motor M32, whereby the position of the rotary head 3H in the width direction D2 is adjusted. By adjusting the position of the rotary head 3H in the width direction D2, the position of the nozzle 32 in the width direction D2 is also adjusted.

In the IC chip mounting device 1 of the present embodiment, the IC chip correction means 102 corrects the positions of the IC chips in the X and Y directions and the orientation of the IC chips on a plane orthogonal to the axis of the nozzle. There is an advantage that the mounting accuracy of the IC chip with respect to the reference position of the antenna is very high.

The valve control means 103 sucks each of the 12 nozzle units 30-1 to 30-12 included in the rotary mounter 3 from each nozzle unit 30 or discharges air according to the position of each nozzle unit 30. Each solenoid valve 35 is controlled so as to perform either operation. Specifically, the valve control means 103 controls the solenoid valve 35 so that when the nozzle unit 30 is located at positions PA to PJ (see FIG. 7), it sucks from the nozzle unit 30, and the nozzle unit 30 is located at position PK. When located in the PL, the solenoid valve 35 is controlled so as to discharge air from the nozzle unit 30.

The curing executing means 104 sends a predetermined drive signal to the ultraviolet irradiator 41 so that the ultraviolet irradiator 41 irradiates each of the conveyed antenna ANs with ultraviolet rays at a preset integrated light amount. ..

The suction determining means 105 determines whether or not the IC chip is sucked by each nozzle unit 30 before each nozzle unit 30 moves from the position PA where the suction of the IC chip is started to the position PK where the IC chip is discharged. judge. In the example of the present embodiment, the suction determination means 105 determines whether or not the nozzle unit 30 that sequentially reaches the position PE based on the image captured by the image pickup device CA3 (an example of the image acquisition unit) sucks the IC chip. To judge.

The rotary head rotation control means 106 is positioned after the non-adsorption nozzle unit with respect to the antenna corresponding to the nozzle unit 30 (referred to as “non-adsorption nozzle unit”) for which the IC chip is determined not to be adsorbed. The angular speed at the time of rotating the rotary head 3H is controlled so that the nozzle unit 30 reaching the second position) discharges the IC chip.

Here, in relation to the rotary head rotation control means 106, the operation when the rotary mounter 3 fails to adsorb the IC chip C will be described with reference to FIGS. 14 and 15. 14 and 15 are diagrams for explaining the operation when the rotary mounter 3 fails to adsorb the IC chip C, respectively, and schematically shows the relationship between the rotary mounter 3 and the antenna sheet AS. 14 and 15 show the state of the rotary mounter 3 when the time elapses in the order of times T1 to T4.

At time T1 in FIG. 14, it is assumed that the nozzle unit 30-1 at the position PA fails to adsorb the IC chip C. That is, the nozzle unit 30-1 corresponds to the non-adsorption nozzle unit.
At time T2 in FIG. 14, the nozzle unit 30-1 rotates counterclockwise and reaches the position PE. At this timing, the image pickup device CA3 captures an image of the nozzle 32 of the nozzle unit 30-1, and it is determined that the nozzle unit 30-1 is a non-adsorption nozzle unit.
At time T3 in FIG. 15, the nozzle unit 30-1, which is a non-adsorption nozzle unit, reaches the position of position PJ. As shown, the antenna corresponding to the nozzle unit 30-1 is the antenna AN-2 on the antenna sheet AS. That is, if the nozzle unit 30-1 has attracted the IC chip, the emission destination of the IC chip is the antenna AN-2.

The time T4 in FIG. 15 is the timing at which the IC chip is discharged to the antenna AN-2. At this time, the angular velocity of the rotary head 3H of the rotary mounter 3 is controlled so that the IC chip is discharged to the antenna AN-2 corresponding to the nozzle unit 30-1 which is a non-adsorption nozzle unit. That is, the rotation of the rotary head 3H of the rotary mounter 3 is accelerated so that another nozzle unit following the nozzle unit 30-1 emits the IC chip to the antenna AN. As a result, at time T4, the IC from the nozzle unit 30-2 immediately following the nozzle unit 30-1 (that is, the nozzle unit that first reaches the position PK after the nozzle unit 30-1) with respect to the antenna AN-2. The chip is released. Therefore, it is possible to prevent the antenna AN-2 from flowing to the subsequent process in a state where the IC chip is not arranged, and it is possible to improve the yield.
Not only when the IC chip is discharged from the nozzle unit 30-2 to the antenna AN-2, but also from another nozzle unit (for example, the nozzle unit 30-3) following the nozzle unit 30-1 the antenna AN. The IC chip may be released with respect to -2.

When performing the operations shown in FIGS. 14 and 15, the rotary head rotation control means 106 accelerates the rotary head 3H when the non-adsorption nozzle unit that does not adsorb the IC chip C approaches the position PK, and from the non-adsorption nozzle unit. The rotary drive motor M31 and the electromagnetic valve 35 are controlled so that the nozzle unit 30 that later reaches the position PK emits the IC chip to the antenna corresponding to the non-adsorption nozzle unit.

The valve control means 103 preferably controls the solenoid valve 35 of the non-suction nozzle unit so that the non-suction nozzle unit does not perform a suction operation. As a result, it is possible to prevent the uncured (that is, highly fluid) conductive paste on the antenna from adhering to the non-adsorption nozzle unit and contaminating it.
Further, it is preferable that the valve control means 103 controls the solenoid valve 35 of the non-adsorption nozzle unit so that the non-adsorption nozzle unit does not perform the discharge operation at the position PK. Thereby, it is possible to prevent the uncured (that is, highly fluid) conductive paste on the antenna at the position PK from being scattered and soiling the antenna.

(2) Curing Step Next, the curing step will be described with reference to FIGS. 16 and 17.
In the curing step, the conductive paste applied to each antenna that has undergone the IC chip placement step described above is cured to strengthen the physical connection between the antenna and the IC chip and to electrically conduct the antenna and the IC chip. To ensure.

FIG. 16 is a diagram showing a portion corresponding to a curing step in the IC chip mounting device 1 of the embodiment. FIG. 17 is a diagram showing a part of the pressing unit 6 and the ultraviolet irradiator 42 as seen from the arrow J of FIG.

As shown in FIG. 16, in the curing step, the IC chip mounting device 1 includes a conveyor 82, a curing device 4, and an imaging device CA4.
The conveyor 82 conveys the antenna sheet AS conveyed from the upstream IC chip arranging process toward the downstream at a predetermined transfer speed.
The image pickup apparatus CA4 is arranged above the antenna sheet AS on the most upstream side in the curing process (that is, the most downstream side in the IC chip arrangement process), and images of each antenna AN conveyed from the IC chip arrangement process are displayed. Take an image. The image pickup apparatus CA4 is provided to inspect whether or not the IC chip is arranged at an appropriate position in the IC chip arrangement process.

As shown in FIG. 16, the curing device 4 has one or more pressing units 6 and an ultraviolet irradiator 42.
The pressing unit 6 moves up and down in a direction orthogonal to the transport surface, and presses the IC chip arranged on the conductive paste of the antenna AN while irradiating each antenna AN with ultraviolet rays. The number of pressing units 6 is not limited, but can be set to any number from the viewpoint of productivity and cost.
The ultraviolet irradiator 42 is arranged along the transport direction D1. Therefore, it is possible to simultaneously irradiate many antenna ANs on the antenna sheet AS with ultraviolet rays.

With reference to FIG. 17, a state in which ultraviolet rays are irradiated to each antenna AN by the ultraviolet irradiator 42 is shown. As shown in FIG. 17, the pressing unit 6 has a structure in which the pressing portion 61 is attached to the tip of the shaft 63. The side surface of the pressing portion 61 of the pressing unit 6 (that is, the surface on the side on which the ultraviolet irradiator 42 is arranged) is open. The glass plate 61p forming the pressing surface of the pressing portion 61 is formed of glass that transmits ultraviolet rays.
The ultraviolet irradiator 42 has a light source 42e such as an LED (Light Emitting Device). The light source 42e is configured to irradiate ultraviolet rays toward the antenna AN from a direction obliquely inclined with respect to the transport surface.
By irradiating ultraviolet rays while pressing the IC chip on the conductive paste applied to each antenna AN, the conductive paste applied to each antenna AN is cured and the physical connection between the antenna and the IC chip is strengthened. At the same time, the electrical continuity between the antenna and the IC chip is ensured.

As described above, a strip-shaped antenna sheet in which a plurality of antennas are formed on a base material at a constant pitch is put into a line, and an IC chip is mounted on each antenna through an IC chip placement process and a curing process. Will be done. In the IC chip mounting device of the present embodiment, an adhesive is applied toward the reference position of the antenna in the IC chip placement process, the IC chip is placed on the adhesive, and the adhesive is cured in the curing step to form an antenna. Strengthen the connection of the IC chip. In the IC chip arranging step, the IC chips adsorbed by the nozzle are sequentially arranged at the reference position of the antenna. At this time, according to the IC chip mounting device of the present embodiment, in the IC chip arranging step, another nozzle unit following the non-adsorption nozzle unit discharges the IC chip to the antenna corresponding to the non-adsorption nozzle unit. The rotation of the rotary head of the rotary mounter is controlled so as to be used. Therefore, it is possible to prevent the antenna from flowing to the subsequent process in a state where the IC chip is not arranged, and it is possible to improve the yield.

Although the embodiment of the IC chip mounting device and the IC chip mounting method has been described above, the present invention is not limited to the above embodiment. Further, the above-described embodiment can be improved or modified in various ways without departing from the spirit of the present invention.

For example, in the embodiment shown in FIG. 3, the case where the antenna sheet AS is conveyed in one direction on the conveyor 81 in the IC chip arranging step is shown, but this is not the case.
In one embodiment, as shown in FIG. 18, in the IC chip placement step, the antenna sheet AS is conveyed by the suction drums 92, 94 and a plurality of transfer rollers (for example, transfer rollers 91, 93, 95 in FIG. 17). You may. In FIG. 18, the conductive paste is discharged by the dispenser 2 to the reference position of the antenna AN of the antenna sheet AS at the highest position of the suction drum 92. Further, the IC chip is arranged on the conductive paste at the highest position of the suction drum 94. In this case, at least the suction drums 92 and 94 are preferably suction rollers that suck the back surface of the antenna sheet AS. As a result, it is possible to prevent the antenna sheet AS from being displaced (particularly in the longitudinal direction), and it is possible to accurately discharge the conductive paste and arrange the IC chip.

In one embodiment, instead of discharging the IC chip onto the conductive paste coated on the antenna AN in the shape of the antenna sheet AS to be conveyed, the IC chip may be arranged by pressing the IC chip against the conductive paste.
FIG. 19 shows the operation of the rotary mounter 3 in chronological order when the IC chip is arranged by pressing it against the conductive paste. In one embodiment, each nozzle unit 30 of the rotary mounter 3 is configured to be individually movable in the radial direction (diameter direction) by a built-in drive device.
The state ST1 is a state in which the nozzle unit 30 has attracted the IC chip C. When arranging the attracted IC chip C, as shown in the state ST2, the nozzle unit 30 is directed toward the reference position so as to extend in the radial direction (diametrical direction) (that is, downward, that is, in the Z direction in FIG. 2). The IC chip C is placed on the conductive paste by moving and pressing the IC chip C onto the conductive paste coated on the antenna AN. After arranging the IC chip C, the suction is released and the nozzle unit 30 is returned to the position of the state ST1. For example, the IC chip C is arranged on the conductive paste applied to the antenna AN by performing the operations of the states ST1 to ST3 at the timing when the nozzle unit 30 reaches the position PK (see FIG. 7).

The curing process of one embodiment is shown in FIG. FIG. 20 shows a curing device 4A used in the curing step of one embodiment. In the curing device 4A, a plurality of ultraviolet curing units 43 are detachably attached to the mounting plate 44. A plurality of mounting plates 44 having different mounting positions are prepared according to the distance between the adjacent antenna ANs of the antenna sheet AS, and the mounting plates 44 are replaced according to the distance to correspond to various antenna sheet AS. be able to.
The support shaft 45 supports the mounting plate 44 and is configured so that the mounting plate 44 can be raised and lowered. The antenna sheet AS conveyed from the IC chip arranging process is sent to the curing process via the transfer rollers 96 to 98. The transport roller 97 is configured to be able to move up and down by a drive device (not shown).

FIG. 21 shows a configuration example of the ultraviolet curing unit 43. As shown in FIG. 21, the ultraviolet curing unit 43 includes a light source 432 (for example, an LED light source) for irradiating ultraviolet rays in the housing 431. The light source 432 is fed by a cable 436 (not shown in FIG. 20) provided from the outside of the ultraviolet curing unit 43. A condensing lens that collects ultraviolet rays emitted by the light source 432 may be provided in the housing 431. The holding plate 434 is connected to the housing 431 and holds the glass plate 435. The ultraviolet rays emitted from the light source 432 are applied to the conductive paste applied to each antenna AN to cure the conductive paste.

With reference to FIG. 20 again, the transport state indicates a state in which the antenna sheet AS is transported from the IC chip arranging process. The transfer of the antenna sheet AS is stopped at the timing when the antenna AN coated with the uncured conductive paste is located directly below the ultraviolet curing unit 43. Then, in the state where the transport of the antenna sheet AS is stopped (stopped state), the ultraviolet curing unit 43 is moved downward, and the antenna AN is irradiated with ultraviolet rays while being pressed by the glass plate 435 to cure the conductive paste.

Since the antenna sheet AS is transported from the IC chip placement process even in the stopped state, the transport roller 97 is lowered by its own weight while irradiating with ultraviolet rays, and the transported antenna sheet AS is combined with the transport roller 96. It absorbs between the transport rollers 98. When the irradiation of ultraviolet rays is completed, the antenna AN corresponding to the number of the ultraviolet curing units 43 is rapidly transported downstream, and the uncured antenna AN is stopped so as to be located directly under the ultraviolet curing unit 43. That is, in the curing step of one embodiment, the transport state and the stop state (state in which ultraviolet irradiation is performed) of the antenna sheet AS are repeatedly performed. When the antenna AN is rapidly conveyed, the transfer roller 97 rises due to the tension applied to the antenna sheet AS.

The curing step of one embodiment may be performed using a thermosetting device. That is, when a thermosetting adhesive such as an epoxy resin is applied to the dispenser 2, the adhesive is cured by performing a thermosetting treatment in the curing step.
FIG. 22 is a curing device 4B configured to repeatedly carry and stop the antenna sheet AS in the same manner as in FIG. 20. Unlike the curing device 4A, the curing device 4B includes a plurality of thermosetting units 46. Each thermosetting unit 46 is provided with a heat source that operates by being supplied with power by a cable (not shown). When the antenna sheet AS is in the stopped state, the support shaft 45 is driven so as to descend, and each thermosetting unit 46 heats and cures the adhesive while pressing the corresponding antenna AN. When the heating is completed, the support shaft 45 is driven so as to rise, and the antenna sheet AS is conveyed.

In FIG. 20, when the conductive paste is cured by ultraviolet rays, a pressing unit that presses the antenna AN through a glass plate is used instead of the ultraviolet curing unit 43 having a built-in light source, and the antenna is pressed in a stopped state. An ultraviolet irradiation device that irradiates the conductive paste on the AN with ultraviolet rays from the outside in the width direction or diagonally above may be provided.
In one embodiment, a plurality of ultraviolet curing units 43 are circulated and moved so as to be interlocked with the traveling speed of the antenna sheet AS so that the antenna sheet AS is not stopped when irradiated with ultraviolet rays, and the antenna AN is moved. Ultraviolet rays may be irradiated by the built-in light source while pressing.
Similarly, in one embodiment, when the conductive paste is heat-cured, a plurality of thermosetting units 46 are circulated and moved so as to be interlocked with the traveling speed of the antenna sheet AS, and the antenna AN is heated while being pressed. You may.

Claims (12)

1. An ejection part that ejects adhesive toward the reference position of each antenna of the antenna continuum in which a plurality of antennas for inlays are continuously formed on the base material.
   There are a plurality of nozzles, and each nozzle can move between the first position and the second position. When the nozzle is in the first position, the IC chip is attracted, and when the nozzle is in the second position, the IC is sucked. With the plurality of nozzles configured to place the chip on the adhesive at the reference position of the corresponding antenna of the antenna continuum.
   A nozzle mounting portion to which the plurality of nozzles are mounted and
   The moving direction of each nozzle when the plurality of nozzles move in an annular trajectory on a plane orthogonal to the transport surface and each nozzle is in the second position coincides with the transport direction of the antenna continuum. A rotating part that rotates the nozzle mounting part and
   A determination unit for determining whether or not an IC chip is adsorbed on each nozzle while each nozzle moves from the first position to the second position.
   The IC chip is arranged by the nozzle that reaches the second position after the non-adsorption nozzle with respect to the antenna corresponding to the non-adsorption nozzle that is the nozzle determined by the determination unit that the IC chip is not adsorbed. As described above, the control unit that controls the angular velocity when rotating the nozzle mounting unit, and
   IC chip mounting device equipped with.
2. The control unit is a nozzle determined by the determination unit to have the IC chip adsorbed, and the nozzle that first reaches the second position after the non-adsorption nozzle arranges the IC chip. , Control the angular velocity,
   The IC chip mounting device according to claim 1.
3. An image acquisition unit for acquiring an image of the nozzle when the nozzle is in a predetermined position between the first position and the second position is provided.
   The determination unit determines whether or not the IC chip is attracted to the nozzle based on the image acquired by the image acquisition unit.
   The IC chip mounting device according to claim 1 or 2.
4. It has a control valve connected to the nozzle and configured to perform either a suction operation of suction by the nozzle or a discharge operation of discharging air from the nozzle.
   The control unit controls the control valve so that the non-suction nozzle does not perform a suction operation.
   The IC chip mounting device according to any one of claims 1 to 3.
5. It has a control valve connected to the nozzle and configured to perform either a suction operation of suction by the nozzle or a discharge operation of discharging air from the nozzle.
   The control unit controls the control valve so that the non-suction nozzle does not perform a discharge operation at the second position.
   The IC chip mounting device according to any one of claims 1 to 4.
6. Based on the image acquired by the image acquisition unit, the correction amount of the IC chip adsorbed on the nozzle is the first correction amount which is the correction amount of the angle around the axis of the nozzle and the transport direction of the antenna continuum. A correction amount determining unit for determining a second correction amount, which is a correction amount for the position of, and a third correction amount, which is a correction amount for the position in the width direction of the antenna continuum.
   The IC chip mounting device according to claim 3.
7. The dispenser ejects the adhesive toward a predetermined reference position of each antenna of the antenna continuum in which a plurality of antennas for inlays are continuously formed on the base material.
   When each nozzle of the plurality of nozzles that can move between the first position and the second position is in the first position, the IC chip is sucked by each nozzle in order.
   The moving direction of each nozzle when the plurality of nozzles move in an annular trajectory on a plane orthogonal to the transport surface and each nozzle is in the second position coincides with the transport direction of the antenna continuum. Rotate the nozzle mounting part to which the plurality of nozzles are mounted,
   While each nozzle moves from the first position to the second position, it is determined whether or not the IC chip is adsorbed on each nozzle.
   For each nozzle determined to have the IC chip adsorbed, when each nozzle is in the second position, each nozzle in turn places the IC chip at the reference position of the corresponding antenna of the antenna continuum. Placed on one of the adhesives
   With respect to the antenna corresponding to the non-adsorption nozzle, which is the nozzle determined that the IC chip is not adsorbed, the nozzle that reaches the second position after the non-adsorption nozzle among the plurality of nozzles holds the IC chip. Control the angular velocity when rotating the nozzle mounting portion so that it is arranged.
   IC chip mounting method.
8. The angular velocity is controlled so that the nozzle determined to have the IC chip adsorbed and the nozzle that first reaches the second position after the non-adsorption nozzle arranges the IC chip.
   The IC chip mounting method according to claim 7.
9. An image of the nozzle when the nozzle is in a predetermined position between the first position and the second position is acquired.
   Based on the acquired image, it is determined whether or not the IC chip is adsorbed on the nozzle.
   The IC chip mounting method according to claim 7 or 8.
10. By controlling a control valve connected to the nozzle and configured to perform either a suction operation of suction by the nozzle or a discharge operation of discharging air from the nozzle, the non-adsorption nozzle sucks. Do not do,
    The IC chip mounting method according to any one of claims 7 to 9.
11. By controlling a control valve connected to the nozzle and configured to perform either a suction operation of suction by the nozzle or a discharge operation of discharging air from the nozzle, the non-adsorption nozzle becomes the first. Do not discharge at 2 positions,
    The IC chip mounting method according to any one of claims 7 to 10.
12. Based on the acquired image, as the correction amount of the IC chip adsorbed on the nozzle, the first correction amount which is the correction amount of the angle around the axis of the nozzle and the correction amount of the position of the antenna continuum in the transport direction. The second correction amount, which is, and the third correction amount, which is the correction amount of the position of the antenna continuum in the width direction, are determined.
    The IC chip mounting method according to claim 9.

Images